Records for Helena Area, Montana (HLNthr) on 10-21
Record Highs
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1: 82°F (2003)
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2: 76°F (1927)
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3: 75°F (1915)
Record Lows
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1: 15°F (1984)
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2: 15°F (1981)
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3: 16°F (1949)
Lowest Highs
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1: 52°F (1904)
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2: 51°F (2003)
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3: 51°F (1937)
Highest Lows
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1: 31°F (1961)
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2: 34°F (1936)
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3: 35°F (1933)
Highest October temperature:
87°F on 10-01-2001.
Lowest October temperature:
-8°F on 10-30-1991.
Average temperature is 43°F
Average high is 54.7°F
Average low is 31.4°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 0.63" (1975)
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2: 0.34" (1920)
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3: 0.25" (1947)
Precipitation data from 1880 to 2022.